About SPUD

SPUD Version 3.0

The Searchable Product Depository (SPUD) is the IRIS DMC's primary data product management system. Complementing the DMC's SEED and assembled data archives, which contain time series recordings, the SPUD system primarily contains derivative data products of other types (images, movies, etc.) created either at the DMC or by members of the community.

For users SPUD is the query and access point for these products. The web interfaces allow users to search for products using customized queries across product and event details. Users can search across all product types at once or within specific product types. SPUD also has web service interfaces for programmatic discovery and access to the data products.

If any products from SPUD are used in your research please be sure to cite the identified author of the product and the IRIS DMS [Citation Information].

About Moment Tensor Products

Global Centroid-Moment-Tensors from the GCMT project at Lamont-Doherty Earth Observatory are available through SPUD within minutes after their publication. Initial quick-CMT solutions are shown and are later updated to GCMT solutions when updates arrive. The download button gives users the full NDK format solution. For more info, visit: www.globalcmt.org.

Citing Global Centroid-Moment-Tensor Products

If you use Moment Tensors in publications, please cite according to the instructions at:

http://ds.iris.edu/ds/products/momenttensor/#citation

When citing this Moment Tensor page please use the Digital Object Identifier (DOI):

doi:10.17611/DP/975955

Moment Tensor Help

The page displays information for individual Moment Tensors.

The centroid origin is displayed next to the primary origin from the IRIS database followed by the moment tensor details.
Moment Tensor for MW 5.7 (GCMT) ARCTIC OCEAN icon
Centroid Event
Date-Time (UTC): 2008-11-17 12:55:24
Location: ARCTIC OCEAN
Latitude, Longitude: 79.590 °, -116.590 °
Magnitude: 5.7 MW
Depth: 12.0 km
Author: Global CMT Project
Catalog, Contributor: GCMT, GCMT
Event
No updated event details available
CMT Details
Event ID C200811171255A
Timestamp: S-20090211105517
CMT Version: Final
NDK Version: V10
Reference Catalog: PDEW
Source Zero Trace
Moment Rate Fn: TRIHD
Half Duration: 1.7
Depth Determination: FIX
Scalar Moment 3.933 e+24 (dyne-cm)
Focal Mechanism
Moment Tensor (Exponent: 24, Units: dyne-cm)
ComponentValueError
Mrr3.810.033
Mtt-2.230.036
Mpp-1.590.04
Mrt0.3520.096
Mrp-0.9140.104
Mtp-1.880.028
Principal Axes (Length Exponent: 24, Units: dyne-cm)
NameAzimuth (°)Plunge (°)Length
T60774.035
N22913-0.214
P3192-3.831
Nodal Planes
NameStrike (°)Dip (°)Rake (°)
NP16244109
NP22174973
Data Used in Inversion
TypeStationsComponentsShortest Period (s)
Body Waves10720540
Mantle Waves4149125
Surface Waves11423950
Event Location
Source NDK
PDEW 2008/11/17 12:55:22.8  79.65 -116.06   7.0 5.4 5.7 ARCTIC OCEAN            
C200811171255A   B:107  205  40 S:114  239  50 M: 41   49 125 CMT: 1 TRIHD:  1.7
CENTROID:      1.6 0.1  79.59 0.01 -116.59 0.04  12.0  0.0 FIX  S-20090211105517
24  3.810 0.033 -2.230 0.036 -1.590 0.040  0.352 0.096 -0.914 0.104 -1.880 0.028
V10   4.035 77  60  -0.214 13 229  -3.831  2 319   3.933  62 44  109 217 49   73
Other Formats
Contributions